Comment 40 for bug 1723758

The nouveau driver hangs with mythfrontend. My system is a desktop intel i7 onboard graphics running kde plasma and a separate user (seat) running mythfrontend directly on X (not kde) using an nvidia GT240 The allows me to use my desktop system at the same time the TV is running mythtv in an adjacent room. When the nouveau driver hangs it has no affect on the desktop system, the last frame or menu remains static on the TV even after restarting the mythfrontend application.

I can reliably cause the hang by stopping the video player using the remote control then trying to stop it again before it completes the first stop. I see the last frame of video and the remote no longer works. Restarting the mythfrontend application, as root on the desktop, blanks the screen then the last frame of video is shown on the TV even though the application has not started a player. Restarting should display a menu, but once hung the picture does not change.

I suspect the some internal registers or kernel data structures are not finished being cleaned up and the second stop does not allow this to complete.